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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Deep Space: The new frontier of radiation controls
In commercial nuclear power, there has always been a deliberate tension between the regulator and the utility owner. The regulator fundamentally exists to protect the worker, and the utility, to make a profit. It is a win-win balance.
From the U.S. nuclear industry has emerged a brilliantly successful occupational nuclear safety record—largely the result of an ALARA (as low as reasonably achievable) process that has driven exposure rates down to what only a decade ago would have been considered unthinkable. In the U.S. nuclear industry, the system has accomplished an excellent, nearly seamless process that succeeds to the benefit of both employee and utility owner.
Don W. DeMichele, Monte V. Davis
Nuclear Technology | Volume 15 | Number 3 | September 1972 | Pages 366-383
Technical Paper | Reactor | doi.org/10.13182/NT72-A16034
Articles are hosted by Taylor and Francis Online.
The mass flow choking limits have been calculated for 14 potential working fluids in cylindrical heat pipes. The problem is analyzed with the vapor assumed to be a perfect gas and then as a compressible gas with viscous flow, and both results are compared to measured heat pipe performance. Based on the measured data the analysis has been extended to other potential working fluids and the results are tabulated.
